A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture

Show simple item record

dc.contributor.author Blamey, John
dc.contributor.author Zhao, Ming
dc.contributor.author Manovic, Vasilije
dc.contributor.author Anthony, Edward J.
dc.contributor.author Dugwell, Denis R.
dc.contributor.author Fennell, Paul S.
dc.date.accessioned 2016-09-02T07:48:43Z
dc.date.available 2016-09-02T07:48:43Z
dc.date.issued 2016-02-01
dc.identifier.citation John Blamey, Ming Zhao, Vasilije Manovic, Edward J. Anthony, Denis R. Dugwell, Paul S. Fennell, A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture, Chemical Engineering Journal, Volume 291, 1 May 2016, pp298-305 en_UK
dc.identifier.issn 1385-8947
dc.identifier.uri http://dx.doi.org/10.1016/j.cej.2016.01.086
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/10487
dc.description.abstract Calcium looping is a developing CO2 capture technology. It is based on the reversible carbonation of CaO sorbent, which becomes less reactive upon cycling. One method of increasing the reactivity of unreactive sorbent is by hydration in the calcined (CaO) form. Here, sorbent has been subjected to repeated cycles of carbonation and calcination within a small fluidised bed reactor. Cycle numbers of 0 (i.e., one calcination), 2, 6 and 13 have been studied to generate sorbents that have been deactivated to different extents. Subsequently, the sorbent generated was subjected to steam hydration tests within a thermogravimetric analyser, using hydration temperatures of 473, 573 and 673 K. Sorbents that had been cycled less prior to hydration hydrated rapidly. However, the more cycled sorbents exhibited behaviour where the hydration conversion tended towards an asymptotic value, which is likely to be associated with pore blockage. This asymptotic value tended to be lower at higher hydration temperatures; however, the maximum rate of hydration was found to increase with increasing hydration temperature. A shrinking core model has been developed and applied to the data. It fits data from experiments that did not exhibit extensive pore blockage well, but fits data from experiments that exhibited pore blockage less well. en_UK
dc.language.iso en en_UK
dc.publisher Rlsevier en_UK
dc.rights (c)2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND. Attribution-Non-Commercial-No Derivs 4.0 Unported (CC BY-NC-ND 4.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subject Reaction engineering en_UK
dc.subject Kinetics en_UK
dc.subject Energy en_UK
dc.subject Adsorption en_UK
dc.subject CO2 capture en_UK
dc.subject Calcium looping en_UK
dc.title A shrinking core model for steam hydration of CaO-based sorbents cycled for CO2 capture en_UK
dc.type Article en_UK

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search CERES


My Account